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POMultiple models in one form using EditorFor
 

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  1. POMultiple models in one form using EditorFor
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    <p>I'm trying to create a simple multi model form using .net 4.5, Entity 5, MVC 4</p> <p>Based on examples I have seen I expect EditorTemplates\Tasks.cshtml to be rendered twice, once for each Task in the Project, but it only appears to get called once and passed a collection of Tasks which I seem to be unable to work with. </p> <p>Any ideas? My classes/views are listed below.</p> <p>Task:</p> <pre><code>public partial class Task { public Task() { this.TaskPeople = new HashSet&lt;TaskPerson&gt;(); } public int Id { get; set; } public string Title { get; set; } public int ProjectId { get; set; } public virtual Project Project { get; set; } public virtual ICollection&lt;TaskPerson&gt; TaskPeople { get; set; } } </code></pre> <p>Project:</p> <pre><code>public partial class Project { public Project() { this.Tasks = new HashSet&lt;Task&gt;(); } public int Id { get; set; } public string Title { get; set; } public virtual ICollection&lt;Task&gt; Tasks { get; set; } } </code></pre> <p>HomeController.New():</p> <pre><code>public ActionResult New() { Project project = new Project(); project.Tasks.Add(new Task() { }); project.Tasks.Add(new Task() { }); return View(project); } </code></pre> <p>Home/New.cshtml:</p> <pre><code>@using (Html.BeginForm("Create", "Home", FormMethod.Post)) { @Html.AntiForgeryToken() @Html.ValidationSummary() @Html.LabelFor(m =&gt; m.Title) @Html.EditorFor(m =&gt; m.Tasks, "Tasks") &lt;input type="submit" value="Save" /&gt; } </code></pre> <p>Home/EditorTemplates/Tasks.cshtml</p> <pre><code>@model IEnumerable&lt;MvcApplication5.Models.Task&gt; @Html.TextBoxFor(m =&gt; m.Title) // Error Here </code></pre> <p>EDIT:</p> <p>If I take IEnumerable out of Tasks.cshtml and replace it with</p> <pre><code>@model MvcApplication5.Models.Task </code></pre> <p>I get the following exception: </p> <pre><code>The model item passed into the dictionary is of type 'System.Collections.Generic.HashSet`1[MvcApplication5.Models.Task]', but this dictionary requires a model item of type 'MvcApplication5.Models.Task'. </code></pre>
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    1. COThe tasks.cshtml shouldn't need to be an IEnumerable<Task> just Task - just put the base type and the razor engine will render the list of m.Tasks -that's how the templates are designed to work. And change the name of the template to Task.cshtml as it matches on the Type. This will also ensure that the form field ids are correctly indexed for passing to the controller.
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